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Multi-branch flow calibration cooperative control method and control system

A collaborative control and multi-branch technology, applied to controllers with specific characteristics, electric controllers, etc., can solve problems such as inability to achieve energy saving effects, lack of joint control of centrifugal pumps and regulating valves, and loss of more power, etc., to achieve Improve control accuracy and anti-interference ability, shorten response time, and solve the effect of large flow fluctuations

Pending Publication Date: 2022-06-17
CHONGQING UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-branch flow calibration cooperative control method and control system to solve the lack of joint control of centrifugal pumps and regulating valves in the prior art, so that a lot of power may be lost in different ranges, which cannot be achieved. The problem of achieving energy saving effect

Method used

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  • Multi-branch flow calibration cooperative control method and control system
  • Multi-branch flow calibration cooperative control method and control system

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Experimental program
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Embodiment 1

[0062] basically as attached figure 1 Shown: a multi-branch flow calibration collaborative control method and control system, comprising the following steps:

[0063] S1: Control the opening of each electric regulating valve through the neural network PID controller;

[0064] S2: Control the centrifugal pump structure through fuzzy PID speed controller;

[0065] S3: Set the flow range interval according to the actual control requirements, and use the split-range coordinated control for control; realize the coordinated control of multi-branch flow;

[0066] S4: The lower computer collects the flow control error, and sends the collected data to the neural network PID controller and the fuzzy PID speed controller.

[0067] The design method of the neural network PID controller is as follows:

[0068] S2.1: The processor obtains the relevant parameters of the control valve and brings it into the dynamic balance equation of the DC motor:

[0069]

[0070] In the formula, R ...

Embodiment 2

[0116] A multi-branch flow calibration collaborative control control system includes a memory, a processor, and the neural network PID controller and the fuzzy PID speed controller of the first embodiment; the memory is used to store the neural network PID controller and the fuzzy PID speed control. The processor is connected with the neural network PID controller and the fuzzy PID speed controller respectively and processes the data.

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Abstract

The invention belongs to the technical field of flow calibration control, and particularly discloses a multi-branch flow calibration cooperative control method and system, and the method comprises the following steps: S1, controlling the opening of each electric control valve through a neural network PID controller; s2, the structure of the centrifugal pump is controlled through a fuzzy PID speed controller; s3, a flow range interval is set according to actual control requirements, and split-range coordination control is adopted for control; and multi-branch flow cooperative control is realized. The centrifugal pump and the regulating valve are jointly controlled, split-range coordination control is adopted, energy loss is reduced, and the purpose of saving energy is achieved.

Description

technical field [0001] The invention belongs to the technical field of flow calibration control, and in particular relates to a multi-branch flow calibration coordinated control method and a control system. Background technique [0002] The flow calibration system has poor stability in the single-channel small calibration range, cannot achieve better control accuracy, and does not perform coordinated control of multiple branches, so it is necessary to design a better controller for the calibration process. At present, most instrumentation companies use common PID controllers for single-channel control. For such nonlinear and time-varying complex control systems, this method is difficult to obtain very accurate tuning parameters, and the single-channel control system is difficult to obtain. Control cannot calibrate instrument products in multiple batches, resulting in problems such as low production efficiency and energy consumption. [0003] In the existing patent CN2019110...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 柴毅刘切屈剑锋包玉龙吴勇周靖宇
Owner CHONGQING UNIV
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